Finding the Fourth Proportional to 242,851.75, 335,135.42 and 142,249.75
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Solution
The fourth proportional to 242,851.75, 335,135.42 and 142,249.75 is: 196,304.66
Step by Step Solution
- Step 1: Write the proportion equation
242,851.75 : 335,135.42 = 142,249.75 : x - Step 2: Convert to fraction form
242,851.75/335,135.42 = 142,249.75/x - Step 3: Cross multiply
242,851.75x = 335,135.42 × 142,249.75 - Step 4: Simplify right side
242,851.75x = 47,672,929,711.15 - Step 5: Solve for x
x = 47,672,929,711.15/242,851.75 - Step 6: Final answer
x = 196,304.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.